--->sudo docker node update --help
--->sudo docker service ls
---->sudo docker service --help
--->sudo docker service create --replicas 2 -p 80:80 --name web1 httpd (This command is used to create
the Service replicas2 menition 2 docker host create the docker Service Master node and worker
node -1 )
--->sudo docker service ls
--->sudo docker service ps web1
--->sudo docker service create --mode global -p 81:80 --name testweb httpd(This command is used
to create any service inastall all of the node will be created the docker node service swarm master
node and joing node all of the conected node will be created docker service )
-->sudo docker service ls
-->sudo docker service ps testweb